Duplicating accounting machine



July 9, 1935. LANDSIEDEL 2,007,829

DUPLICATING ACCOUNTING MACHINE Filed Feb. 11, 1928 6 Sheets-Sheet 1 July 9, 1935. H. LANDSIEDEL DUPLICATING ACCOUNTING MACHINE Filed Feb. 11, 1928 6 Sheets-Sheet 2 JIWENTOR any landsiedel A T TOR/YE Y July 9,1935. H. LANDSIEDEL DUPLICATING ACCOUNTING MACHINE IM E/V TOR Hang Z A TTORNE V July 9, 1935. H. LANDSIEDEL DUPLICATING ACCOUNTING MACHINE Filed Feb. 11, 1928 6 Sheets-Sheet 4 INVENTOR yarly landsiedd A TTORNEY July 9, 1935.

H. LANDSIEDELY 2,007,829 DUPLICATING ACCOUNTING MACHINE Filed Feb. 11, 1928 e Sheets-Sheet 5 3 7a ll lYYYENZ'OR Ola 90 6; a y @dstede July 9, 1935. H. LANDSIEDEL DUPLICATING ACCOUNTING MACHINE Filed Feb. 11, 1923 Sheets-Sheet 6 I. lljl Patented July 9, 1935 UNITED STATES PATENT OFFICE DUPLIOATING ACCOUNTING MACHINE Harry Landsiedel, New York, N. Y., assignor to Remington Rand Inc., New York, N. Y.

This invention relates to improvements in an adding and recording machine, which may comprise means for posting simultaneously to a number of sheets or forms through'the agency of several recording mechanisms, each separate recording mechanism operable under control of separate differential mechanisms, all of which differential mechanisms may be set by operation of a single set of keys.

An object of this invention is to provide a means for setting the several differential mechanisms simultaneously by the operation of a single set of keys.

Another object is to 'provide, in conjunction with recording mechanism, improved means for printing simultaneously with recorded items the date as set by the operation of a set of keys; together with controlling means a component of which is adjustable to different working positions on and is removable from its support.

Another object is to improve the construction and operation of special differential mechanism comprised in date-printing or character-printing mechanism that includes type-carriers controlled by the special differential mechanism.

In the accompanying drawings and in the description which follows, mechanisms of the char acter and for purposes mentioned will be ex plained as applied to a machine embodying the Well known principles of the Standard Dalton adding machine. This has been in practice accomplished by the use of Dalton adding machines mounted on a common base, having suitable mechanical connections between them, and equipped with a single tabulating paper carriage of sufficient length to accommodate the sheets, forms or strips of paper involved in the required operation of the machine. Each separate machine, three being shown, closely resembles a Standard Dalton recording mechanism, accumulating mechanism, andsuch feature controls; both manual and automatic from the carriage, as may be required in its operation. Only one of the three machines, however, preferably that located in the center, is equipped with the sets of keys for setting the diiferen tialmechanisms and the dates.

It is obvious that instead of three units of machines, only two may be employed, or the number may be made to exceed three, in any amount consistent with commercial requirements.

However the invention may be embodied in a machine composed of a single framework and operating mechanism, instead of two or more distinct units mounted on a common base and operabookkeeping machine in that it is equipped with tively connected together, and some of the mechanism constituting the invention may be embodied in a machine consisting of a single unit like one of those that together form'the machine that is shown and described hereinn The invention consists of improved stop-setting mechanism and improved special printing numerals designate like parts in difierent views-- Fig. 1 is a sectional elevation, viewed from the right side, of the frame and some of the mechanism of the central machine-unit;

Fig. 2, a modified plan of the machine;

Fig. 3, amodified front elevation thereof;

Fig. 4, a plan of framework and mechanism comprised in a fragment that is next to the back of the machine;

Fig. 5t a front elevation thereof;

Fig. 6, a plan of the machine-base and mechanism associated with the motor, and shifting devices for disabling the two lateral machine-units;

Fig. 7, a view of the right side of a fragment of the base and mechanism supported by it;

Fig. 8, a front elevation of the base and mechanism supported by it;

Fig. 9, a plan of one of the stop-carriages which the machine contains, and some of its escapement;

Fig. 10, a front elevation thereof;

Fig. 11, a view similar to Fig. 9, but showing the mechanism when the designating key is de-' pressed;

Fig. 12 is an enlarged plan of keys and other portions of date printing mechanism; Fig. 13, a section on plane .rx, Fig. 12; Fig. 14, a plan of a differential side; Fig. 15, a plan of another differential slide; Fig. 16, a perspective of a key; and Fig. 17, a plan of two key-locking plates. The machine that embodies the invention in the form shown comprises the three machine units I, 2 and 3, (Fig. 2), mounted on a common sub base 4, (Figs. 1, 2 and 3), the machine having slidably mounted thereon in the usual manner, a single paper carriage 5, (Figs, 1 and 3), intended to hold all sheets or forms employed in the operation of the machine. Each machine unit has its individual recording mechanism consisting essentially of type carriers 6, loosely mounted on a shaft (Fig. l), and associated adding gear racks 2 I. These type carriers and associated. gear racks when released by suitable means are adapted to advance under influence of springs 8 to the printing position. The extent of this movement is determined by a heel 9 which limits on an elevated stop III in a differential mechanism comprising a transversely movable stop carriage which moves from right to left from order to order with the regular operation of the machine.-

Means for setting stops Pivoting in guide combs II' of unit 2, (Figs. 1 and 2), are the differential mechanism control keys and key-levers I2, these leversbeing tappet' bars, having at their extreme rear ends tappets I3, each of which, with depression of the key, attached thereto, is adapted to elevate a cooperating stop III in the well known manner- Pivoting in a similar manner and havi a-dutysimilarto that of the key levers are th tappetbars. I4 located in units I and 3, (Fig. 2). The tappet. bars of units I. and 3 may be regarded as key levers with the forward portion of each cut off, as they are not to be operated by the. usual means of control from the keyboard. The method of transmitting movement to the tappet bars of units I and '3 will novv be described. Pivotally connected to the tappet bars in uni links I5, (Fig. 3), which extend d wnward and make suitable connection with bell cranks I6 pivoting on shafts I! having fixed supports. Pivot; ally connecting the bell cranks I6 of unit 3 with corresponding bell cranksof unit I are laterally extending links I8, each provided with a projection I9. Depending fromkey levers I2 in unit 2, (Figs. '1 and 3), and making pivotal connection therewith are links 29 which make suitable con-' nection with co-operating bell cranks 2 I, pivoting on shaft 22, each of such bell cranks being adapted to drive an associated link I8 through the projection I9. Throu'ghthesemeans, depression of any one of the keys I2 will set up a corresponding stop in each of the three differential mechanisms.

In Patent No. 1,449,009, granted for a prior invention of mine, is shown stop-setting mechanism by which stops may be-set in two stop-carriages and in a machine composed of two units, but that stop-setting mechanismds not suitable, or convertible by the mere addition of levers 36 and 49 such as the patent shows into mechanism that would be suitable, to set the stops of a machine composed of three units, and it difiers inconstruction and mode of operation from the stopsetting mechanism that is described herein. I

Means for. driving and disabling machine units Attached to the sub base 4, (Figs. 6, 7, and 8), is

a motor drive unit-23 similar to the regular Dal; ton motor drive' .but with the cam shaft 24 extended laterally at both ends for the-purpose of driving units I and 3. Those units are driven'by means of cams 25 operating drive arms 26 which are adapted to co-operate with standard main shaft member 21. Drive arms 26 are mounted on shafts 28 which are supported and free to pivot in brackets 29, such drive arms being operated by cains 25 by provision of rolls 39 normally in 'the path'of cam movement. Mounted on brackets r 29 bypivot screws3I are shift levers 32, each of which is adapted, when manually operated, to

shift its co-operating drive arm shaft 28 laterally, carrying theroll 30 on its arm 26 out of the path of its associated cam 25, thus disabling the driving mechanism of that particular machine unit.

I and 3are- Date'printing mechanism The date printing mechanism includes type carriers located to the left of and similar to the regular type carriers 6, (Fig. 1). These devices, which carry the type for printing the day of the month are two in number and are herein' desig-. nated as the units and tens date type'carriers.

associated slides or followers 34 to descend by ten-' sion of springs 8. The extent of this movement is limited by steppedindex plates 31 and 38 slidably mounted behind said plane under the lower extremitybf the followers 34.. Index plate 31 cooperates with the units column follower and provides for ten printing positions, zero to nine, while index plate 38, which limits the movement of the tens'column follower, provides for three printing positions I to 3. The index plates 31 and 38 are operated by levers 39 and 40, Figs.'2, 4, 5 and 12), respectively. These levers are pivotally connected to the plates 31 and 38 respectively and extend forward therefrom nearly to the front of the machine, lever 39 being pivoted at 33 and lever 40 at 40* to a fixed portion of the frame-work (Figs. 2, 12, l, 4) The lever 39 at its forward extremity makes connection with a differential slide 4i provided with several lugs 42. This part of the mechanism is substantially the same as that disclosed in application Serial No. 703,101, filed March 31, 1924. When released by the suitable means, the lever 39 is caused to move in a clockwise direction by tension of a spring 43 until one of the lugs 42 on slide 4| limits on a depressed key in the units date keyboard 44. Index plate 37, described as being connected to the rear extremity of lever 39, will then be located so as to permit suificient movement of the units date type carrier ,to position, for printing a numeral corresponding to the part'cular units date key depressed. The lever 40 at its forward extremity makes connection with a slide 45 provided with a lug 46. When released by its suitable means, the

lever 40 is caused to move in a counter-clockwise direction by tension of spring 41, until lug 46 on slide 45 limits on a depressed key in the tens .date keyboard 48. Index plate 38, described as becam 5i (Figs. 1 and 3), maybe slidably mounted on a-toothed bar 52- in such position as to bear on a cam follower 534mly when the movable carriage is in the required date printing position. The cam is or may be adjustable into different working. positions on the support 52. .The cam follower 53 is adapted, when driven by a cam 5|, to force downwardly a slide 54. The slide 54 is normally. held in an-elevated position by a spring 5'5 and is provided with suitable guides in brackets 56 and 51. Through suitable driving means consisting of a rock arm 59, a link 59 and another arm 60, the slide 54 makes connection with a lock arm 6| pivoting at 62 and having a forwardly projecting lug that normally passes through apertures 63, (Fig. 5), in the index plates 31 and 38. It is obvious that this control mechanism or releasing means, would render the date printing mechanism inoperable while the locking device engages the plates, and that only when cam 5| bears on follower 53 to drive the lock arm 6| out of apertures 63, is it possible for the I date mechanism to function in printing.

to restore the levers in the last part of a cycle by any suitable means, such as by an arm extending downward from the main rock shaft shown in Figs. 6, 7 and 8; and it may be moved in the opposite direction by a spring I 05'.

The keys of the date-printing mechanism have the forms represented in Figs. 1, 2 12, 13 and 16, each having an upper arm on which is a keyhead, and a lower arm, many of the arms being bent as shown. These keys are loosely mounted on the pivot-rod I25. Underneath the tens keys is the lock-plate I06 and underneath the units keys is the lock-plate I01 (Figs. 1, 2 and 17), these plates having the same shape in cross section (Figs. 1 and 13). Plate I06 has the aperture I08 and plate I01 has the three apertures I09. Both plates are pivotally mounted on the pivot rod IIO passing through ears II I and H2 formedonplates I06 and I01 respectively. Springs H3 and I I 4 pull upward on the plates in front of the rod H0. A lug II5 on plate I06 may extend over a projection on lug II6 on plate I01 as shown in my application Ser. No. 703,101, so that when the tens plate I06 is depressed by a tens key, both plates shall turn on rod I I0, their front edges swinging downward and the springs H3 and H4 being stretched, but plate I01 can swing without disturbing plate I06. Normally the lower arm I I8 of each finger key is in contact with the inclined front margin of the lock-plate below it, as shown in Figs. 1 and 13, and a spring II9 prevents the arm from moving backward unless the spring is stretched. When a key is operated, arm I I8 swinging backward and stretching spring I I9, forces downward the front of the lock 'plate, and as the arm reaches the aperture behind it in the lock-plate that plate is drawn to its normal position by its restoring spring and arm H8, passing through the aperture and drawn by its restoring spring against the front edge thereof, is latched in the path of alug of the differential slide behind it. When keys representing a date are set and looked as described, they may be released by depressing any tens key, which will depress both lock-plates as described above. But if only 2. units key is depressed, only lookplate I01 will be depressed and a tens key will not be released. This key-locking mechanism is claimed in my prior application 703,101. The keys and lock plates will be swung back to their normal positions by their restoring springs.

One cam plate 5| may cause the date to be printed on each sheet once in any line and ordinarily that is all that is required. However, several columns are commonly printed on each sheet,

and when that is done the carriage stands in different positions during the printing of a single line, and should it be desired to print the date l before different entries in one line, two or more cam plates 5| may be employed.

Any cam-plate may be set on its support in a positiorfiin which it will not function, or may be removed from the machine. If no cam functions the releasing means of which it is a component does not, and. the locking device prevents movement of the stepped plates 31 and 38, the differential slides, and the actuators of those plates and slides, and, of course, the type-carriers to"'which are connected the followers that act on the stepped plates. But locking of thisdateprinting or character-printing mechanism does not affect the normal operation of the mechanism that adds and records the items of an account.

As the foregoing description indicates the levers or bars and 40, with the springs by which they are moved, are common actuators of the differential slides that 'act on the key-controlled stops, and of the index-plates or stepped stopplates 31 and 38, which stand side by side and close together when they are in their normal positions and each of which is movable from its normal position toward a side of the machine andv in one direction only that is opposite to the direction of the others movement from its normal position. The followers that are connected to the type-carriers and act on the stepped stopplates are prevented by the latter from advancing to their differential positions when the stopplates are in their normal positions. If the proper key is actuated either stop-plate may be set to enable the follower that acts on it to function in different positions while the other follower is held in its normal position by the other stopplate.

In the machine shown in application No. 703,101 each date-printing type-carrier, when it swings forward, is arrested by the action of .a differential slideon a key, counteracting force and flexibility of some of its components. The

defect was remedied by the conception and development of the mechanism that is herein described and that includes the stepped plates 31 and 38 which arrest the type-carriers by limiting the downward movements of the followers 34, connected to the type-carriers merely by the short links 33. By this mechanism not only is the lost motion between the type-carriers and their arresting stops reduced to a negligible amount, but also the levers 39, 40, differential slides 4|, 45, and keys 44, 48, are entirely relieved of stress such as that to which the corresponding devices of the older mechanism are subjected in arresting the type-carriers at their printing positions.

Designafng word printing mechanism I The extreme right hand member of the group of type carriers 6, which is shown in Fig. 1, holds the type for printing the words or characters required, in the Work to be performed by the machine. Whenreleased by the usual means,this type .carrier is adapted to advance, under the tension ofspring 8 to the printing position as determined by a heel 9 limiting on an elevated stop ID in the transversely movable carriage.

Since the designating symbol will be set up with the item, after the item has been introduced into required to act unit must not be disturbed.

introduced into the stop carriage, the pin 99.

the stop carriages, the row of stops immediately to the right ofthe elevated item stops will constitute the row which co-acts with the designating column type carrier, and this row will register with the tappets I3 on the rear ends of key levers l2.

It is evident, however, that when a stop is set on which the heel 9 of the symbol-printing typecarrier i to act, the stop-carriage must be prevented from then moving further, for of course the set stop must be kept the path of the heel 9 of that type-carrier, and the relation of any previously set stop to the particular type-carrier The mechanism for blocking such stop carriage ,movement will now be described.

- The transversely movable stop carriage 61, (Figs. 9, 10 and 11), which holds the stops I0, is adapted to advance from right to left, as previously mentioned, with each depression of a regular numeral key. The mechanism for control-. ling this escapement consists in part of link 68 connecting the carriage 61 with an arm 69 rigid on a vertical shaft Ill, such shaft being free to pivot and havingrigidly aiiixed at its lower extremity an escapement rack I], which -co-acts with the usual escapement pawls and operating mechanismnot described. It is obvious in Fig. 9 thatthe lateral movement of the carriage 61, from right to left will cause a clockwise rotating movement of therack teeth II, this movement being the equivalent of one tooth for each operation of the keys.

This mechanism, just described, is located in 'machine 2 and controls the escapement of all three stop carriages which are connected by'links 61A, (Fig. 2), and are adapted to move laterally as one carriage.

Pivoting at 12, (Fig. 1) is the designating control key 13 having pivotally connected thereto a rearwardly extending link it which makes suitable connection with an'arm 15, (Figs. 9, 10 and 11) pivoting at 16. The arm 15 carries at its exbe restored by the spring HA, (Fig. .1), when, as V the escapement sector restores with acounterclockwise movement, a rack tooth 89A, (Fig. 11) adjacent to the above mentioned tooth space 99 drives the pawl tooth 79A out of engagement with the tooth space 89 and the latching pawl ill off" of projection 78.

When the rack l I is restored; a pin 89 thereon engages a cam surface 84 of the arm 8!, thereby restoring and holding the arm 8! against a stud 82 on latching pawl Ti, and preventing the-same from latching on projection I8 while moving rearwardly on depression of the designating key as described.- As the rack ll moves clockwise out of normal position, when one or more digits are moves out of proximity of cam surface 841, permitting arm 8| to float freely and the-pawl Tl to latch on projection 18 on depression of the designating key. 7

The designating type carrier, described as being located on the right of type carriers 6, is normally checked against forward movement and consequent printing by provision of a latch 86, (Fig. 1), engaging with an offset latching sh'oulder 86 on the type carrying member. Thelatoh 85 is rigid on a shaft 87 which is supported and free to pivot in bracket 88, such shaft having rigid therewith another arm 89 which makes connection to link 14 through another link 90 and a rock lever 91 as shown. Through these means,

depression of the designating key results in the released by the regular means.

The shaft 81 is extended laterally and has rigidly amxed at each end the drive arms 92, (Figs. 4

and which are, adapted to operate arms 93, rigid on shafts 94 and 95 of machines I and 3 respectively, such shafts serving the same purpose as shaft 81 in machine 2.

Means for depressing total and sub-total keys Supported and free to pivot in brackets 96, (Figs. 1 and 3), is a laterally extending shaft 91 which has rigidly aflixed thereon an operating lever 98. Depending from shaft 91 in alignment with and adapted to operate each of the regular total keys 99 of the three machines is an arm I09. i

Downward movement imparted to the lever 98 rocks the shaft assembly counter-clockwise with the resultant depression of the total keys. A similar means is employed to depress the subtotal keys, arm 99A serving as the controlling lever, such arm being rigid on shaft Nil, supported in brackets 96 and having arms H02 positioned to .depress the sub-total keys I03.

While a special embodiment of the invention has been shown and described, it is obvious that certain of the controls and other features could be caiiried out by other means and in connection with other types of machines. 7

Whatis claimed is:--

1, man adding and recording machine the combination of a pair of separately shiftable stepped stop-plates which normally stand face to face and close together and in which are apertures that register when the stop-plates are in their normal positions, a device including a lug that coacts with sides of said apertures in looking the stop-plates, and means acting on said device to release both plates simultaneously.

2. In an adding and recording machine the combination of a pair of shiftablestepped stopplates each movable from its normal position in one direction only that is opposite .to the direction of the others movement from its normal position, a pair of differential slides,a pair of actuators each connected to a stepped plate and to a slide; and a releasable lock that tends constantly to function and normally prevents movement of both of the stepped plates and their. actuators and slides.

3. Ina machineof the class described and com- I prising differential devices operating in front-torear vertical planes, the combination of a keycontrolled differential slide at the front of the machine and movable transversely of the machine, a stepped stop slide at the rear of themachine and movable transversely of the machine, means for connecting the two slides so that the rear slide is settable differentially under the control of the front slide, and a differential device operating in a front-to-rear verticalplane and controlled in its setting by the step's of said rear slide.

4. In a machine of the .class described and comprising differentially settable type carriers operating in front-to-rear vertical planes, the combinatio'n of a key-controlled slide at the front of the machine and settable differentially transversely of the machine, a stepped stop slide at the rear of the machine and slidable transversely of the machine, means connecting the two slides in such wise that the rear slide is settable differentially under the control of the front slide, a type carrier operating in a front-to-rear vertical plane, and means whereby said type carrier is difierentially arrested by the steps of said rear slide.

5. In a machine of the class described, the combination of a key-controlled slide at the front of the machine settable difierentially transversely of the machine, a stepped-stop slide at the rear of the machine and slidable transversely of the machine, a lever device connecting the two slides so that the rear slide is settable difierentially under the control of the front slide, and a difierential device controlled by the stepped stops of said rear slide.

HARRY LANDSIEDEL. 

